If you or someone in your family is immuno-suppressed, have at it. Otherwise in terms of risk avoidance you might as well start wearing a crash helmet when you ride the bus just in case.
30,000 die in the US in car accidents every year. crash helmets, race harnesses, and roll cages would save thousands of lives. but I get that some people rather die than wear safety gear.
I understood masks were not about making you proof against infection, but instead for slowing the spread so hospitals could respond. That's the critical measure of mask effectiveness.
